Home / 125,087.74-172,605.27-99,658.60

Finding the Fourth Proportional to 125,087.74, 172,605.27 and 99,658.60

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Solution

The fourth proportional to 125,087.74, 172,605.27 and 99,658.60 is: 137,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,087.74 : 172,605.27 = 99,658.60 : x
  2. Step 2: Convert to fraction form
    125,087.74/172,605.27 = 99,658.60/x
  3. Step 3: Cross multiply
    125,087.74x = 172,605.27 × 99,658.60
  4. Step 4: Simplify right side
    125,087.74x = 17,201,599,560.82
  5. Step 5: Solve for x
    x = 17,201,599,560.82/125,087.74
  6. Step 6: Final answer
    x = 137,516.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.